car is throwing codes I don't know how to fix?

Sounds to me like your tested fine alternator/battery is a problem. The way you describe it is, you are losing power when your vehicle uses additional battery power without additional alternator charge from pressing the accelerator. Are you using any accessories when this happens? Ac, rear defrost? These are big power draw'ers... Worse at night when using headlights? Have these re-tested. I once had a battery tested that said PASS only to die in the lot after the test and guess what? I bought a new battery... Guess what else? One week later same thing... I bought a new alternator the said pass while on the vehicle and failed off of it... PS Stay away from wal mart batteries... Unless you don't mind replacing em every 6 months or so.

P0174 OBD-II complication Code Technical Description: equipment Too Lean (financial company 2) What does that propose? in fact this means that an oxygen sensor in financial company 2 detected a lean subject (too lots oxygen interior the exhaust). On V6/V8/V10 engines, financial company 2 is frequently the factor of the engine that doesn't have cylinder #a million. notice: This DTC is extremely resembling P0171, and actual your vehicle would prepare the two codes on the comparable time. indications: you will greater advantageous than probable not be conscious any drivability issues, in spite of the shown fact that there may well be indications including a loss of ability, detonation (spark knock), and/or a hesitation/surge on acceleration. motives A code P0174 would propose that a number of of of right here has took place: The MAF (Mass air circulate) Sensor is grimy or defective. notice: using "oiled" air filters would reason the MAF to alter into grimy if the clear out is over-oiled. there is likewise an argument with some vehicles the place the MAF sensors leak the silicone potting fabric used to guard the circuitry. There may well be a vacuum leak downstream of the MAF sensor. feasible suggestions: in very nearly all of circumstances, merely cleansing the MAF sensor does the trick. seek for suggestion out of your provider handbook for that is area in case you like help. i stumble on it fairly is right to take it off and spray it with electronics cleanser or brake cleanser. confirm you're careful to not harm the MAF sensor, and verify that is dry in the past reinstalling. notice: Mass Airflow Sensor cleanser works ideal for this. See the hyperlink decrease than. you have already put in a sparkling MAF sensor so cleansing may well be pointless. look in any respect vacuum and PCV hoses, replace if needed verify for a grimy gas clear out and proper gas stress